Pump.



s. A. MOSS.

PUMP. m ucmlou 'FlLED JULY IQ, 1:915.

- Patented Apr. 23, 1918,

Inventor;

SnFr'd MASSACHUSETTS, "A$IGN n to cement r w n; conronn'rronor new 4 cm.

enin;

" Teal] whom'z't m y concern; I

Be it known that l, SANFORD A.- 0ss,,a citizen of the United States, residing at Lynn, county of Essex, State of Massachut setts, have invented certain new and useful llmprovements'in Pumps, lowing is a. specification The present invention relates to ,ppmps of the type in which an felastic or non-elastic of which the folre fluid to be umped is sucked in at one pressur and elivere'd against a higher pressure by means of .asecond elastic or" nonelastic fluid which may be termed the umping fluid and which is discharged rom. a, 'smtahle nozzleor nozzles. Such pumps are commonly termed injector or ejectoi'v pumps according to the use to which they creep plied, i The object of the invention is to provide v 20 an improved structure-which ernhodies certam new-prmciples-m constructton and o eraticn discovered by me and which resu jts in a structure which is more edicicnt and economical 1n operation than those hereto.- r Y W fore.

I have discovered thht .apperatuscof this character the effi'clency is greatly increased lay-providing a plurality of nozzles v for both the pumping fluid and the fluid to l he pumped, which nozzlesare interspersed among ,ea'ch other with jtheir ends lying; in

substantially the' same plane,- and are all de signed to convex-t1 pressure into .veloc'ityi ey are alspgadveutegeously arranged so tt that -"the; no'izizles forthe pumping fluid are focused onj theaxis of the'mixing tube intowhi h thev project and which is also the dis'- chargetuhe. By this arrangement I obtainmaininum entrainment edect between the.

ttz nmpirlg "Fluid and the fluid to be p'urnped. i For a con ideration of what I believe ,to he s novel and my invention, attention is directed. I to "the accompanving' description and the.

claims appended thereto.

I time application ot an ejor pnmp i'or'rernovinp; air, vapor and other'ses from condensers. and in the accompanying drawing whichillustrates an enihodirnt otnnv invention is shown an} t ttaparatus warily designed for this purpose." tn this connection the pumping fluid my invention is as v and Fig 3 is a view, on a smaller S hempartly in section of the invention.

Referring to the drawing, the ejector tpeciflcation of Letters tatent; I Apr 9 11,, I v I ,1 hpplilontton-flled rul in, 191w. Serial it. notes.

opening '7 to receive a pi 8 through which the pumpin fluid enters the casing, and anend Well 9' evmg a, discharFe opening 10- a which has acenvergmg wal 11 terminate mgm flange ,12; --lhe end walls 7 end .9,are suitably ttstened to the side wall t as b means'of bolts 13, llnside the casi is a ledge 14, to which is fastened by bolte l5 a tupshaped member 16; For this purpose the member 16 is provided with a flan e 17, 'Jljhc base of the member 16 is'provide with a plurality of symmetrically errangedope'ne mgs 18. through which project the nozzles v 19. Eahh of these nozzles comprisesaball-- shaped head 20 having anopeningfll there through, and e; wall 22; forming" e dischargc passage. which isdesigned to, convert prese sure fintev'elocity. In the presentinstance it is shown. as {a diverglng passage since at til the press1'1re,..at which the pumping jflnid W111 ordinarily beeprovlded it will take this form; Ilhefheads, 20 rest onseats formed 4. in th .np'enings; 18 and 'are held in place i by a plate. 23 having. openings 2% of lesser dinmeter" than the heads and into which the heads proj ct. The plate is held in *place by bolts 25.; ball joint for. the ncazles so they can be very qu ckl and easily ad us tothe sir d anee. The m mber 16 and con nected parts form a partit on Wl'llCl'l dlvnlesthe easing into two'chembers .26 and 27 for the pumping" fluid and th f uid in be pumped respectively. 1 Attached to t This arrangement; forms a flange 123s a diverging pipe section his, withjthe convergin walllt, terms a chnverefin2-diverving lscharge passage. The well 11, it ll noted, forms e smooth gradually convegingpassage beginning nt the point indicated at 29.and te'rmineti at the throat of the converging-dimming dischajree passage. The noazles 19 project well within the converging passage IQ, and terminate in substantially the same plane.

'will ordinarily'tbe steam. in such drawing, 'lhey serve to'divide it-up into a Elurality re 1 is a o'nall view thereot: Fig, ot'ssaeres which are intezsperse when W t about the throatj thereof.

signed to convert the pressure of the fluid to be pumped into velocity as it flows through them, and in the present instance they are shown as converging passages as they take this form in the design illustrated. In other words, the walls 22 and wall 11 are designed to form the interspersed passages for both the pumping fluid and the fluid'to be pumped, which'passages are in each instance of a form to convert pressure into velocity. The passages all terminate in substantially the same plane which is the oint at which mixing of the fluids begins. ilhis, therefore, gives in substance a plurality of interspersed nozzles for both the pumping fluid and the fluid to be pumped, all of which nozzles terminate'in substantially the same plane. By this improved arrangement, I obtain a conversion of more or less ofthe pressure of the fluid being pumped in velocity before it mingles with the pumping fluid. and at the same time I also obtain a subdivision of the fluid being pumped into a plurality of streams. This gives the maximum entrainment effect between the respective fluids. The nozzles for the'pumping fluid aswell as passages for fluid being pumped are directed so as to focus on the axis of the converging-diverging dischargle passage at his gives the maximum 'eflec'ti between the respective fluids, tending to drive the fluid' tofibe pumped along the pumpingfluid, in'an efficient manner without eddles or impact.

Since the passages for the fluid to be "pumped, which immediately precede the mixing plane are arranged to convert pres' sure into velocity, this fluid will be more readily entrained by the pumping fluid,

. andwith less friction loss. than if there were pumped is to have its pressure increased, we first decrease its pressure in order to no such velocity. Also. the pressure of the fluid being pumped will be less at the mix-" ing plane than it .was in the chamber 27. That is to say, although the fluid to be increasethe efficiency of the further opera- Ell) - tions.

In accordance with the provisions of the a patent statutes, I have described the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but

ll desire to have it understood that the ap-j paratus shown ls only illustrative, and that the invention can be carried out by other means.

What Iclaiin as new and desire' to secure by Letters fPatent at the United States,

12TH an apparatus of the character de- J- s'lfibed' mbi ation of a casing having admission openings'tor the pumping fluid and theflte'he pumped, and a discharge.

opening, and interspersed multiple passages for both fluids each of which 15 deslgned to convert pressure of the fluid flowing through it into velocity.

2. In an apparatus of the character described, the combination of a casing havin admission openings for the pumping flui and the fluid to be pumped, and a discharge opening, and interspersed multiple passages for both fluids which terminate in substantially the same plane and each of which is designed to convert pressure of the fluid pumped,the passages through said nozzles and thesurrounding passages all acting to convert pressure of the fluidflowing through them into velocity.

4. Inan apparatus of the character de scribed, the combination of a casing having admission openings for the pumping fluid and the fluid to be pumped, and a discharge passage having a gradually converging wall, andwalls in the casing forming interspersed I passages for the pumping fluid and the fluid to be pumped, all of which passages terminate in substantially the same plane within the converging discharge passage and act to convert pressure of the fluid flowing through them into velocity.

5. In an apparatus of the characterdescribed the combination of a casin having, admission openings for the pumpingfluid' and the fluid to be pumped, and a discharge passage having a gradually converging wall, and a plurality of nozzles for the pumping.

fluid designed to convert pressure into veaxis of such passage, the passages surroundmg said nozzles serving to conduct the fluid to be pumped and to" convert, pressure into velocity.

6. In an apparatus of the character described. the combination of acasing havin a admission openings for the pumping, flui and the fluid to be pumped, anda discharge passage having'a gradually converging-wall,

and walls in the casing formin interspersed. passages for the pumping flui and the fluid.

to be pumped, all of which passages terminate in substantially the same plane within the converging discharge passage, and actto convert pressure of the fluid flowing though no -locity, said nozzles all ending within the cpnverging' discharge passage in substan tlally the same plane and focused on the magma them into velocity, said walls being so shaped that the passages for the pumping fluid focus on the axis of the discharge passage.

7 In an apparatus of the character descrlbed, the combination of a casing, means forming a partition dividing the easing into two chambers, one of which has anopening for admitting pumping fluid, and the other an opening for admitting the fluid to be pumped, said last named chamber having also a discharge passage leadin therefrom which is converging and then iverging in shape, and nozzles carried by said partition means which project across the last named chamber to a point well within the converging portion of said discharge passage and are focused on the axis thereof and which serve to convey the pumping fluid to the discharge passage, the passages surrounding said nozzles serving to convey the fluid to be pumped and to convert pressure into velocity; v

8. In an apparatus of the character described, the combination of a casing, means forming a partition dividing the easing into two chambers, one of which has an" opening for admitting pumping fluid,

and the other an opening for admitting the fluid to be pumped, said ast-named chamber having also a discharge passage leading therefrom which is converging and then divergin in shape, and nozzles which project throng 1 and are adjustably mounted on said partition means and extend to apoint well within the converging portion of said discharge passage, said nozzles being designed to convert pressure into velocity and serving to convey the pumping fluid to the discharge passage, the passages surroundin said nozzles serving to' convey the fluid to e pumped and to convert pressure into velocity.

9. In an apparatus of the character described, the combination of a casing, a partition member having openings therein which divides the easing into two'chambers, said openings being provided with seats,

nozzles projecting through said openings. 

